Automatic valve.



W. J. KENNEDY.

AUTOMATIC VALVE.

APPLICATION FILED JAN-14' 19:4.

invrrnn snares. Parana" ensues.

WALTER J. KENNEDY, OF CLEVELAND, OHIO, ASSIGNOR TO THE FUEL ECONOIVIIZER COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

AUTOMATIC VALVE.

Specification of Letters Patent.

Patented Mar. 6, 1917.

Original application filed July 30, 191? Serial No. 782,112. Divided and this application filed January 14,

1914. Serial No. 812,009.

To all whom it may concern:

Be it known that I, WALTER J. KENNEDY, a citizen of the United States, and resident of Cleveland, in the 'county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Automatic Valves, of which I hereby declare the following to be a'full, clear, and exact description, such as will enable others skilled in the art to which it appertain's to make and use the same, this application being a division of application Serial Number 7 82,112,

for an automatic valve, filed July 30, 1918.

The objects of the invention are to provide an improved tilting lever and valve operated by cooking utensils when placed upon a gas orfuel oil stove in which the flow of fuel gas is controlled by the action of the lever and valve, which controls in turn the supply'of gas to the burner and by means of which the supply of fuel gas to the burneris automatically increased when the cooking utensils are placed over the burner and decreased when the utensils are removed, thus ec'onomizing the use offuel; and reducing the danger of burning the hands or clothing while the cooking uten-fl it can be applied to all forms of gas stoves and ranges as a standard form of valve.

The invention includes" a' main rotary valve furnishing a direct means of communication from the supply tube to the burner,

and pilot light, and an auxiliary valve rotatable within the main 'valve for controlling the amount of pilotlight. 1 I

It includes automatically acting means controlled by the action of the utensil support for operating the main valveand separate manually operated means for adjusting the position of the auxiliaryvalve rela-g tive to the main valve;

gas fed to'the burn'erand The invention further includes the combination and arrangement of parts and construction of details hereinafter described, illustrated in the accompanying drawings and specifically pointed out in the claims.

perspective view of a needle valve for ad-- justing the flow of gas to the mixer, Fig. 8 is a perspective view of the tilting lever and fingers thereon; Fig. 9 is a perspective view of thepin which secures the main spring for the valve and is employed to operate the valve Fig. 10 is a transverse section of mam and auxiliary valves showing the port openings therein. Fig. 11 is aplan view of the valve showing a universal movement for the valveioperating liner.

Fig. 12 is a vertical section of the valve. In these views A represents the top plate of a gas stove, B the burner, C the gas supply pipe leading thereto. 1) is the valve casingplaced intermediate of the top A. of

the stove and pipe C and so constructed and arranged as to be applicable to this confined position in all stoves and ranges.

To obtain the compact form of valves desired, a main rotary valve Eis seated in a transverse seat F in the casing, and an auxiliary valve G isrotatably mounted within the main valve, and after adjustment the auxiliary valve moves with the main valve. The main valve is provided with the port H'which in the position of the valve shown in Figs. 2 and 3 forms a direct communicating passage without tortuous passages of any kind communicating with the pipe C and'the jet I leading to the burner.

This valve is automatically operated by means of the tilting lever J mounted upon a rock shaft K and at its outer endis providedjwith the downwardly turned fingers L which form smooth rounded extremities for the lever that will olfer no resistance so that a cooking utensil will depress the lever easily when sliding over the stove.

' Arock arm M depending from the shaft K engages a pin N radially extending from the lower extremity of the valve and rotates the valve to open and close the port II. This rock arm is pinned at 0 upon the shaft so as to be capable of a certain amount of freedom of movement so that its lower extremity will follow the pin N in its changing positions as the valve rotates.

The valve is closed automatically by means of the torsion of a coiled spring P sleeved about the end of the valve and seated in an enlargement P of the casing.

The smaller port Q; in the main valve is always in communication with the opening It leading to the tube S for the pilot light which in this invention is independent of the tilting lever.

The auxiliary valve G is pivoted centrally within the main valve and secured therein by means of the spring T engaging a shoulder T upon the main valve and a screw T which is rigidly seated in the lower end of the auxiliary valve.

The auxiliary valve has only one opening U which controls the passage of gas through the main valve. This opening communicates also with the small radial opening leading to the pilot light at all times except when all gas is entirely shut off from the jet pipe.

This is permitted by means of the short chambers X, X at the edges of the main radial opening U.

The auxiliary valve G is p'rovidedwith a handle G upon which is pivoted a catch G pressed by a spring G and having a down wardly extending point G This point when depressed can be made to engage at option with either of the indentations 0 a spaced upon the upper extremity of the main valve, and stops 6, 6, limit the movement of the auxiliary valve. The three positions rep resent respectively wide open, closed, and partially open. 7

The openings Q; and X upon the valves furnish communication between the gas inlet pipe and the pilot light except in one position as shown in Fig. 12.

In Figs. 3 and 7 are shown a stationary needle valve I which is provided with narrow side wings I which are inserted in slots I in the extremity of the jet pipe I. Upon the end of this pipe is adjustably screwed the jet I into the orifice of which the stationary needle enters when the jet is moved up and down the pipe.

In this manner a simple and convenient means of adjustment is afforded for the jet orifice. In Figs. 1' and 8 the lever which operates the main valve is shown. 7

Here the lever J is provided with an outer extremity longitudinally adjustable in the main portion and provided with fingers IJ which are curved downwardly to permit a utensil to slide over and depress them, and a brace bar for the lever is shown at L which is laterally adjustable in the sleeve L secured to the main portion J. The outer end of the brace is provided with an eye L which encircles a portion of the pilot tube and pivots thereon.

The outer extremity of the pilot tube is provided with an air mixer S sleeved thereover and inclosing a perforated plug S Having described the invention what I claim as new and desire to secure by Letters Patent is:

1. In a fuel economizing device for a stove burner, a valve casing having a main passage for gas, a tubular main valve rotatable within the casing and an auxiliary valve rotatable within the tubular valve, said main and auxiliary valve having openings registering with the main passage in the casing, said casing provided with a separate reduced outlet passage, said main and auxiliary valves provided with passages adapted to register with each other and with said separate reduced outlet passage in the casing when the auxiliary valve is turned to close said main passage, and a device for operating the auxiliary valve independently of the main valve, said device engaging points upon said main valve.

2. In a valve for supplying gas to a burner and to a separate pilot tube, in combination with a casing having amain passage leading therethrough and also having a separate reduced outlet passage through its wall, a main tubular valve rotatable in said casing, an auxiliary valve rotatable in said main valve, said valves having passages registering with each other and with said mainpassage in said casing when open, and said valves having reduced passages communicating with each other and with said reduced passage through the wall when said main passage is closed, said reduced passages in the valves communicating also with the main passage through said auxiliary valve.

3. In a valve for controlling the supply of gas to a burner and pilot tube, a casing provided with main inlet and outlet passages for gas and with a reduced outlet passage for gas, a main valve rotatable in said casing, and an auxiliary valve rotatable in said main valve, said valves having main passages communicating with each other and with said main passage in said casing when said main valve is open, and said main and auxiliary valves having reduced passages therein communicating with said reduced passage in the casing and with the main passages in each valve, said reduced passages being controlled by the movement of the auxiliary valve.

4. The combination with a valve casing, said casing having main inlet and outlet ports, and a separate reduced port, of a main rotary valve therein, said valve having cor responding main and a separate reduced port opening, and an auxiliary valve rotatable within said main rotary valve and provided with a main port opening and with marginal reduced openings, and adapted to control the main and reduced port openings in said main valve, a handle for operating said auxiliary valve, and a lever pivoted in said casing for operating said main valve.

5. In a valve for a gas burner, a Casing having main inlet and outlet port openings, and a reduced separate outlet opening, a main valve rotatable in said casing and provided with corresponding main and reduced port openings, an auxiliary valve rotatable within said main valve and provided with a corresponding main opening and with reduced marginal port openings, said auxiliary valve adapted to control said main and reduced openings in said main valve, means.

WALTER J. KENNEDY.

In presence of- WM. M. MONROE, WM. J. KLOTZBACH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

